2009 Audi A3 vs. 2007 Audi RS4
To start off, 2009 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi RS4. In addition, the cost of maintenance, including insurance, on 2007 Audi RS4 would be higher. At 4,161 cc (8 cylinders), 2007 Audi RS4 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (414 HP @ 7800 RPM) has 313 more horse power than 2009 Audi A3. (101 HP @ 5600 RPM) In normal driving conditions, 2007 Audi RS4 should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi RS4 weights approximately 444 kg more than 2009 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A3. In wet, icy, snow, or gravel driving conditions, 2007 Audi RS4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Audi RS4 (430 Nm @ 5500 RPM) has 282 more torque (in Nm) than 2009 Audi A3. (148 Nm @ 3800 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A3.
Compare all specifications:
| 2009 Audi A3 | 2007 Audi RS4 | |
| Make | Audi | Audi |
| Model | A3 | RS4 |
| Year Released | 2009 | 2007 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 4161 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 101 HP | 414 HP |
| Engine RPM | 5600 RPM | 7800 RPM |
| Torque | 148 Nm | 430 Nm |
| Torque RPM | 3800 RPM | 5500 RPM |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 77.4 mm | 92.8 mm |
| Engine Compression Ratio | 10.3:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 185 km/hour | 250 km/hour |
| Acceleration 0-100mph | 12.2 seconds | 4.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1266 kg | 1710 kg |
| Vehicle Length | 4290 mm | 4590 mm |
| Vehicle Width | 1770 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2580 mm | 2660 mm |
| Fuel Consumption Overall | 7.1 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
